REPLXENDIANFAIL, SSSS side encountered error while doing endian conversion at journal sequence number JJJJ
Error: The originating or the replicating instance in a cross-endian replication environment report this error whenever they detect that the endian conversion failed.
Action: Restart replication - if the transmission caused the problem, it's probably intermittent. Perform a MUPIP JOURNAL -EXTRACT -DETAIL on the journal files and search for the sequence number JJJJ to look for anything different about that journal record. If the report is on the secondary, take a fresh backup on the originating instance requesting new journal files, refresh the replicating instance and restart replication.